Hi everyone, I'm a total newbie with openstack, currently I'm trying to put a POC with a Unity storage element, 4 computes, and few servers (cinder, keystone, glance, neutron, nova, placement and horizon). I think my keystone, glance, placement are working (at least they past the test). Currently I'm trying to make cinder working with my Unity (480), the objectif are to use iSCSI. Here the configuration of my /etc/cinder/cinder.conf [DEFAULT] rootwrap_config = /etc/cinder/rootwrap.conf api_paste_confg = /etc/cinder/api-paste.ini iscsi_helper = tgtadm volume_name_template = volume-%s volume_group = cinder-volumes verbose = True auth_strategy = keystone state_path = /var/lib/cinder lock_path = /var/lock/cinder volumes_dir = /var/lib/cinder/volumes enabled_backends = unity transport_url = rabbit://openstack:XXXXXX@amqp-cloud.private.FQDN/openstack auth_strategy = keystone debug = True verbose = True [database] connection = mysql+pymysql://cinder:XXXXXXX@mariadb-cloud.private.FQDN/cinder [keystone_authtoken] www_authenticate_uri = http://keystone.private.FQDN:5000/v3 auth_url = http://keystone.private.FQDN:5000 identity_uri = http://keystone.private.FQDN:5000 memcached_servers = memcached-cloud.private.FQDN:11211 auth_type = password project_domain_name = default user_domain_name = default project_name = service username = cinder password = XXXXXX [oslo_concurrency] lock_path = /var/lib/cinder/tmp [unity] # Storage protocol storage_protocol = iSCSI # Unisphere IP san_ip = onering-remote.FQDN # Unisphere username and password san_login = openstack san_password = "XXXXX" # Volume driver name volume_driver = cinder.volume.drivers.dell_emc.unity.Driver # backend's name volume_backend_name = Unitiy_ISCSI unity_io_ports = *_enp1s0 unity_storage_pool_names = onering When I'm trying to create a storage through a openstack volume create volumetest --type thick_volume_type --size 100 I don't even see (with tcpdump) the cinder server trying to connect to onering-remote.FQDN Inside my /var/log/cinder/cinder-scheduler.log I have 2021-04-19 18:06:56.805 21315 INFO cinder.scheduler.base_filter [req-4808cc9d-b9c3-44cb-8cae-7503db0b0256 f5e5c9ea20064b17851f07c276d71aee b1d58ebae6b84f7586ad63b94203d7ae - - -] Filtering removed all hosts for the request with volume ID '06e5f07d-766f-4d07-b3bf-6153a2cf6abd'. Filter results: AvailabilityZoneFilter: (start: 0, end: 0), CapacityFilter: (start: 0, end: 0), CapabilitiesFilter: (start: 0, end: 0) 2021-04-19 18:06:56.806 21315 WARNING cinder.scheduler.filter_scheduler [req-4808cc9d-b9c3-44cb-8cae-7503db0b0256 f5e5c9ea20064b17851f07c276d71aee b1d58ebae6b84f7586ad63b94203d7ae - - -] No weighed backend found for volume with properties: {'id': '5f16fc1f-76ff-41ee-8927-56925cf7b00f', 'name': 'thick_volume_type', 'description': None, 'is_public': True, 'projects': [], 'extra_specs': {'provisioning:type': 'thick', 'thick_provisioning_support': 'True'}, 'qos_specs_id': None, 'created_at': '2021-04-19T15:07:09.000000', 'updated_at': None, 'deleted_at': None, 'deleted': False} 2021-04-19 18:06:56.806 21315 INFO cinder.message.api [req-4808cc9d-b9c3-44cb-8cae-7503db0b0256 f5e5c9ea20064b17851f07c276d71aee b1d58ebae6b84f7586ad63b94203d7ae - - -] Creating message record for request_id = req-4808cc9d-b9c3-44cb-8cae-7503db0b0256 2021-04-19 18:06:56.811 21315 ERROR cinder.scheduler.flows.create_volume [req-4808cc9d-b9c3-44cb-8cae-7503db0b0256 f5e5c9ea20064b17851f07c276d71aee b1d58ebae6b84f7586ad63b94203d7ae - - -] Failed to run task cinder.scheduler.flows.create_volume.ScheduleCreateVolumeTask;volume:create: No valid backend was found. No weighed backends available: cinder.exception.NoValidBackend: No valid backend was found. No weighed backends available It seem (for me) cinder don't try to use unity.... Any help ? Regards -- Albert SHIH Observatoire de Paris Heure local/Local time: Mon Apr 19 08:01:37 PM CEST 2021